Climatological Report (Monthly)
Issued by NWS Medford, OR

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000
CXUS56 KMFR 020415
CLMMFR

CLIMATE REPORT
NATIONAL WEATHER SERVICE MEDFORD, OR
200 AM PDT TUE AUG 01 2023

...................................

...THE MEDFORD OR CLIMATE SUMMARY FOR THE MONTH OF JULY 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1911 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            115   07/20/1946
 LOW              38   07/01/1976
                       07/02/1962
HIGHEST          102   07/15                         114  07/29
LOWEST            57   07/08                          54  07/23
                       07/11
AVG. MAXIMUM    95.0               91.6     3.4     94.0
AVG. MINIMUM    62.3               58.6     3.7     62.6
MEAN            78.7               75.1     3.6     78.3
DAYS MAX >= 90    29               19.7     9.3       22
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.74   1913
TOTALS          0.00R              0.24   -0.24     0.40
DAILY AVG.      0.00               0.01   -0.01     0.01
DAYS >= .01        0                1.9    -1.9        3
DAYS >= .10        0                0.8    -0.8        2
DAYS >= .50        0                0.0     0.0        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.00   06/30 TO 06/30

SNOWFALL (INCHES)
RECORDS
 TOTAL           0.0   2010
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1        0.0                0.0     0.0       MM

DEGREE DAYS
HEATING TOTAL      0                  4      -4        0
 SINCE 7/1         0                  0       0       MM
COOLING TOTAL    432                317     115      418
 SINCE 1/1       734                469     265       MM

FREEZE DATES
RECORD
 EARLIEST     09/13/1921
 LATEST       06/12/1952
EARLIEST                        11/10
LATEST                          04/15
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.0
HIGHEST WIND SPEED/DIRECTION    20/010    DATE  07/25
                                20/010          07/27
HIGHEST GUST SPEED/DIRECTION    28/290    DATE  07/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.00
NUMBER OF DAYS FAIR           30
NUMBER OF DAYS PC              0
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     39

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                0     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       0     FOG W/VIS <= 1/4 MILE      0
HAZE                     18

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

JULY 2023 WAS A TYPICAL SUMMER MONTH FOR SOUTHERN OREGON AND
NORTHERN CALIFORNIA. THE MONTH STARTED OFF ON THE HOT SIDE WITH HIGH
PRESSURE IN CONTROL. UPPER 90S/TRIPLE DIGITS WERE COMMON ACROSS THE
VALLEYS WEST OF THE CASCADES WITH UPPER 80S/LOWER 90S EAST OF THE
CASCADES. THIS PROMPTED HEAT ADVISORIES ACROSS THE REGION, AND THE
MEDFORD AIRPORT RECORDED IT`S FIRST 100 DEGREE DAY OF 2023 ON JULY
4TH. OTHER CLIMATE SITES CAME CLOSE TO RECORDS DURING THIS HEAT
EVENT, BUT THE ROSEBURG AIRPORT WAS THE ONLY ONE TO SET A DAILY
RECORD ON THE 5TH. THERE WERE A COUPLE OF THUNDERSTORM DAYS DURING
THE FIRST WEEK OF THE MONTH, BUT LIGHTNING WAS ONLY RECORDED ACROSS
NORTHERN CALIFORNIA AND INTO LAKE COUNTY DURING THIS TIME.

TEMPERATURES TRENDED COOLER FROM THE 7TH TO THE 12TH AS LOW PRESSURE
PASSED THROUGH THE PACIFIC NORTHWEST AND TEMPERATURES LOWERED TO
NEAR NORMAL FOR EARLY JULY. HIGH PRESSURE RETURNED AROUND THE MIDDLE
OF THE MONTH, HOWEVER, AND IT`S INFLUENCE PERSISTED THROUGH AROUND
THE 23RD. THIS BROUGHT THE RETURN OF ABOVE NORMAL TEMPERATURES AND
TRIPLE DIGITS TO WEST SIDE VALLEYS. THE MEDFORD AIRPORT RECORDED
IT`S HOTTEST TEMPERATURE OF THE YEAR THUS FAR ON THE 15TH WHEN THE
HIGH TEMPERATURE REACHED 102 DEGREES. EVEN LOCATIONS EAST OF THE
CASCADES APPROACHED AND/OR REACHED 100 DEGREES, AND TWO OF THE
CLIMATE SITES IN NORTHERN CALIFORNIA SET MULTIPLE DAILY RECORD HIGH
TEMPERATURES DURING THIS HOT STRETCH. DRY CONDITIONS PERSISTED
DURING THIS HEAT EVENT, EVEN WHEN THE HEAT BROKE AS MONSOONAL
MOISTURE REMAINED SOUTH AND EAST OF THE AREA.

ANOTHER NOTABLE COOLDOWN ARRIVED ON THE 24TH AS A RELATIVELY STRONG
FRONT (BY SUMMER STANDARDS, WEAK BY WINTER STANDARDS) MOVED THROUGH
THE REGION. THERE WAS ENOUGH MOISTURE ASSOCIATED WITH THIS FRONT TO
BRING MEASURABLE PRECIPITATION TO COASTAL LOCATIONS, BUT NOT ENOUGH
FOR PRECIPITATION TO MAKE IT ANY FARTHER INLAND. THIS FRONT DID
RESULT IN SOME CRITICAL FIRE WEATHER CONDITIONS AS GUSTY WINDS
OCCURRED ACROSS THE REGION AND RELATIVE HUMIDITIES REACHED
CRITICALLY LOW VALUES. THIS COOL DOWN PERSISTED THROUGH THE END OF
THE MONTH WITH NO ADDITIONAL THUNDERSTORM DAYS.

THE REGION SAW IT`S FIRST WILDFIRES OF THE SEASON IGNITE DURING THE
WEEK OF THE 17TH. THE FLAT FIRE STARTED IN CURRY COUNTY NEAR THE OAK
FLAT CAMPGROUND, AND THE GOLDEN FIRE STARTED IN KLAMATH COUNTY
BETWEEN THE COMMUNITIES OF BONANZA AND BEATTY. THE GOLDEN FIRE
RESULTED IN IMMEDIATE EVACUATIONS AND ULTIMATELY DESTROYED A NUMBER
OF HOMES AND OUTBUILDINGS. BY THE END OF THE MONTH, HOWEVER, THE
GOLDEN FIRE WAS WELL UNDER CONTROL. THE FLAT FIRE, HOWEVER,
CONTINUED TO BURN INTO THE MONTH OF AUGUST, AND SMOKE FROM THIS FIRE
IMPACTED CURRY, JOSEPHINE AND JACKSON COUNTIES AT TIMES DURING THE
LAST HALF OF THE MONTH.

$$


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